The edges of clothing items can be “too perfect” when exported from Marvelous Designer, like the bottom edges of this t-shirt:

To solve this, you can use Maya’s built-in sculpt tools. Just use the “grab” tool – try to avoid the ‘smooth’ tool as it will create obvious problems with the mesh.

Here’s how to use the GRAB tool:

• Make sure you are in MODELLING mode
• Go to the MESH TOOLS > SCULPTING TOOLS then click the top of the menu that appears, so it detaches
  
• You now can easily access the sculpting tools
• Click the OPTIONS button next to “GRAB TOOL”
  
• Change the size to approximately 6
  
• Click on the mesh you want to adjust, then click-drag on areas to pull them